EffectTransform.transformColor doesn't match the GPU path

[adroitwhiz]

Expected Behavior

EffectTransform.transformColor should transform a color by the given drawable's effects in the same way as the sprite shader does.

Actual Behavior

The sprite shader applies the "color" effect in HSV space (#355), and applies the "brightness" effect in RGB space (#399).

EffectTransform.transformColor, on the other hand, applies the "color" and "brightness" effects in HSL space.

[adroitwhiz]

Closing in favor of the more detailed #578